FacultyFaculty/Author Profile

David Siegel

Irell & Manella LLP

Los Angeles, CA, USA


David Siegel is a partner in the Los Angeles office of Irell & Manella LLP, where he leads our securities litigation practice. Mr. Siegel was Managing Partner of the firm for two three-year terms, the maximum tenure. 

Mr. Siegel's practice is concentrated on the defense of securities class and investor claims against corporations and their directors and officers; SEC enforcement proceedings; and other complex commercial litigation matters.  He was profiled in a review by California Law Business as one of the top 5 California attorneys in defending stockholder litigations, and was identified as one of the leading securities litigators and as one of the top 100 most influential lawyers in California by the Los Angeles Daily Journal. Mr. Siegel has also been recognized as a leading securities litigator by Chambers & Partners in its Chambers USA Leading Lawyers for Business Guide.  Mr. Siegel has been named multiple times by his peers as one of the "Best Lawyers in Commercial Litigation" in the prestigious The Best Lawyers in America guide and designated by Lawdragon as one of the "500 Leading Lawyers in America."  Mr. Siegel has also been named one of Southern California's best lawyers by the Los Angeles Times Magazine for his work in Commercial Litigation. 

Mr. Siegel has acted as lead counsel in defense of numerous major stockholder class and derivative actions in both federal and state courts throughout the United States. He also frequently represents public companies and individuals in SEC enforcement and other governmental investigations and proceedings. 

Given the nature of the areas in which he practices, Mr. Siegel frequently counsels corporate Boards and senior management in respect of litigation and litigation avoidance, regulatory enforcement and criminal investigations, indemnification, insurance, and internal investigations. 

Mr. Siegel has chaired and is a frequent speaker at various seminars concerning securities litigations, class actions, and trial techniques, including as chair of the "PLI Securities Litigation & Enforcement Institute."  He has also served on various advisory panels in the field of securities litigation, including as one of eight members of the National Advisory Panel for Directors and Officers Litigation for National Union Insurance Co., and on the California State Senate Blue Ribbon Task Force on Shareholder Litigation. He has been designated by Los Angeles Magazine to the region's "Super Lawyers" list, as selected by his peers, every year that the magazine has compiled the list. 

In 1981, Mr. Siegel served as an extern for the Honorable Justice Wiley Manuel of the California Supreme Court. 

Practice Areas

  • Securities Litigation
  • Securities Law & Corporate Governance
  • Litigation
  • Class Action Defense
  • Professional Liability Defense
  • White Collar Defense

Education

  • University of California, Hastings College of Law (J.D., 1981), Valedictorian, Order of the Coif; Thurston Legal Honor Society; Articles Editor of the Hastings Law Journal
  • University of Florida (B.A., Political Science, 1977)

Bar & Court Admissions 

  • 1981, California
  • U.S. Supreme Court; U.S. Court of Appeals, Ninth Circuit; U.S. Court of Appeals, Fifth Circuit; U.S. District Court, Central, Southern, Northern and Eastern Districts of California
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